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We have recently acquired the capability to perform fairly
complex water flow simulations using a computer based flow analysis
application. This system allows us to construct a model of an actual
or theoretical water distribution in a highly detailed and organised
manner. This model includes pipes, valves, pumps, tanks and can be
run over an extended period of time based on various demands,
pressures and other related variables.
The simulation uses Hazen-Williams, Darcy-Weisbach or
Chezy-Manning headloss methods and includes minor headlosses for
bends, tees, valves and other fittings.
We can also model the impacts of leaks on distribution
systems.
This capability is particularly useful in the case of larger
buildings, townhouse complexes or campuses that are experiencing
problems with their water distribution system. It can also be used
on smaller buildings, but in the case of a small house you don't
have to model the problem - it's apparent just by doing some basic
measurements and looking at it! We are able to model an unlimited
number of pipes and nodes so in theory could model an entire town,
but that's not part of our core business. We wish to use this as a
tool to identify and quantify water supply problems in specific
areas and then do the nesessary pipework to remedy the
situation.
We are able to conduct a detailed analysis of the system without
having to dig it up! The process begins with baseline data
collection - starting at the water supply all the way through to the
individual taps. Pipe lengths and diameters are measured and all
visible detail is included - like valves, storage tanks, etc. Supply
pressure is measured and the flow potential quantified. Flow
expectations at the end points are quantified.
Once this is done the data is fed into the simulator and run -
either as a once off simulation or over a given time period so as to
more accurately model a system with varied supply and demand. We are
then able to see what the characteristics of the system should be
and compare this to it's actual performance. If the system is
performing as it has been designed, then we can simulate changes to
the system that will improve it. This may include the replacement of
pipes with bigger ones or the addition of a storage tank and/or pump
to reduce the impact of high demand and low supply situations.
Contact Lee on 083 458 4836 if you need more info on flow
simulation.
info@blockbusterdrain.co.za
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September 2011
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Lee Brand
Blockbuster Drain Cleaning.
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